Container Basics

This section explores the container management systems Docker and Podman. The labs also cover the low-level components of the Docker system e.g. containerd, runc. Beginners will learn how to perform the basic operations like pushing, pulling, creating and running containers. 

What will you learn?

  • Using Docker client to perform basic operations including push, pull, build images and interacting with container/network 

  • Using podman to create, manage and interact with containers, images and networks

  • Interacting with containerd to run containers

  • Running Docker containers using Docker image with runc and umoci  


References:

  1. Why Docker? (https://www.docker.com/why-docker)

  2. What is a container? (https://www.docker.com/resources/what-container) 

  3. Getting started with Docker (https://docs.docker.com/get-started/) 

  4. What is Podman? (https://podman.io/)

  5. RunC runtime (https://github.com/opencontainers/runc)


Labs:

In this lab, you will learn to perform the basic operation with Docker CLI. A non-exhaustive list of topics to be covered includes: 

    • Check Docker and Docker host information

    • Pull and list Docker images

    • Run and interact with container

    • List and inspect containers

    • List and manage networks

    • Build and push image 

    • Commit a running container

    • Export image as tar

    • Remove image/container/network

  • Containerd Basics Lab

In this lab, you will learn to perform the basic operation with ctr (containerd) CLI. A non-exhaustive list of topics to be covered includes: 

    • Check ctr version

    • Pull and list Docker images

    • Create and list container

    • Start, pause, resume, kill, delete task and attach to a task (running container)

    • Export image as tar

    • Push and delete Docker image

  • Podman Basics Lab

In this lab, you will learn to perform the basic operation with Podman CLI. A non-exhaustive list of topics to be covered includes: 

    • Check Podman information

    • Pull and list images

    • Run and interact with container

    • List and inspect containers

    • List and manage networks

    • Build and push image 

    • Commit a running container

    • Export image as tar

    • Remove image/container/network

  • Containers With Runc

In this lab, you will learn to fetch and run a Docker image without using Docker. A non-exhaustive list of topics to be covered includes: 

    • Using curl to list images/tags present on local Docker registry

    • Fetch the image using curl

    • Using umoci to convert OCI image to image bundle

    • Run the image using runc

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Docker Basics Lab

FREE LAB
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Containerd Basics Lab

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Podman Basics Lab

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Containers With Runc